A method and device for establishing a fireproof space of a nuclear island plant, a storage medium and an electronic device

Abstract

The application discloses a nuclear island plant fireproof space establishment method and device, a storage medium and electronic equipment, comprising collecting structure layout data and sodium process system data of a nuclear island plant, dividing a process room of the nuclear island plant into multiple fireproof spaces according to the structure layout data and the sodium process system data; dividing the fireproof spaces into sodium-related fireproof spaces and non-sodium fireproof spaces according to the structure layout data and the sodium process system data; calculating and obtaining a sodium fire state according to the sodium-related fireproof spaces and the sodium process system data, determining a sodium fire resistance limit according to the sodium fire state; determining a conventional fire resistance limit according to the non-sodium fireproof spaces and a standard combustion curve; and providing a fireproof isolation equipment setting scheme for the fireproof spaces according to the sodium fire resistance limit, the conventional fire resistance limit and a fire standard temperature rise curve.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant safety technology, specifically to a method, apparatus, storage medium, and electronic equipment for establishing fireproof spaces in nuclear island plant buildings. Background Technology

[0002] To meet the development requirements of the national nuclear energy strategy and the defense industry, my country has successively carried out the design, construction, and operation of sodium-cooled fast reactors. Sodium-cooled fast reactors use liquid metallic sodium as a coolant. Once high-temperature metallic sodium leaks, there is a possibility of sodium fire. However, its combustion process and combustion products differ significantly from those of common combustible fires in nuclear power plants, such as those involving cables and electrical equipment.

[0003] Existing methods for establishing fire compartments in nuclear power plant nuclear island buildings primarily target common flammable materials such as cables and electrical equipment within the building, creating fire-resistant spaces (a collective term for all fire zones and fire-resistant communities) and installing boundary fire-resistant isolation equipment to prevent fires from impacting nuclear safety. However, due to the unique characteristics of sodium fires, such as their long duration, potential for instantaneous high pressure, and the production of corrosive aerosols after combustion, existing methods for establishing fire-resistant spaces and the fire resistance requirements for boundary fire-resistant isolation equipment do not consider the characteristics of sodium fires. This could lead to a risk of loss of fire-resistant space integrity in the event of a sodium fire.

[0004] Patent document CN103632738B discloses a method for dividing fire protection zones in a nuclear power plant. This method includes: initially identifying the functional zones of the nuclear island building; dividing fire protection zones within the identified functional zones and determining the type of each fire protection zone; dividing nested fire protection sub-zones within the fire protection zones; estimating the fire duration of each fire protection zone or sub-zone and determining the boundary fire resistance limit; setting fire protection nodes on the fire protection boundaries of each fire protection zone or sub-zone based on the fire resistance limit value of each fire protection zone or sub-zone; conducting a post-fire safety shutdown evaluation by zone; and adjusting the fire protection zones or sub-zones based on the evaluation results. However, this method does not address the risk of loss of fire protection space integrity in nuclear island building fire protection zones when dealing with sodium fires, as existing methods for establishing fire protection spaces and the fire resistance performance of boundary fire isolation equipment fail to fully consider the special characteristics of sodium fires, such as long duration, instantaneous high pressure, and the generation of corrosive aerosols.

[0005] Patent document CN103700208B discloses a method for integrated control and display of fire protection spaces in nuclear power plants, incorporating all fire protection equipment into a unified operation and management system. It analyzes the three functions it should achieve: fire space isolation, fire suppression, and smoke exhaust. To achieve these functions, active fire protection equipment needs to cooperate effectively and uniformly. Based on these technical requirements and the technical scheme for the layout of nuclear power plant systems and equipment, it analyzes and determines the corresponding control and display information. Based on this analysis, it determines the layout scheme for control and display. However, it does not address the risk of loss of fire protection space integrity due to the fact that existing methods for establishing fire protection spaces and the fire resistance performance of boundary fire isolation equipment in nuclear island fire zones do not fully consider the special characteristics of sodium fires, such as long duration, instantaneous high pressure, and the generation of corrosive aerosols.

[0006] In summary, none of the aforementioned existing patents address the risk of loss of fire-resistant space integrity in nuclear island plant fire compartments when dealing with sodium fires, as existing methods for establishing fire-resistant spaces and the fire resistance performance of boundary fire isolation equipment fail to fully consider the special characteristics of sodium fires, such as long duration, instantaneous high pressure, and the generation of corrosive aerosols. Summary of the Invention

[0007] Based on the above-mentioned technical problems, this invention proposes a method, device, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island plant buildings. This addresses the risk that existing methods for establishing fire-resistant spaces and boundary fire-resistant isolation equipment fail to fully consider the special characteristics of sodium fires, such as their long duration, instantaneous high pressure, and the generation of corrosive aerosols, which may lead to the loss of the integrity of the fire-resistant space.

[0008] To achieve the above objectives, this invention proposes a method for establishing fire-resistant spaces in nuclear island plant buildings.

[0009] A method for establishing fire-resistant spaces in a nuclear island plant includes: Collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces based on the structural layout data and sodium process system data; Based on the structural layout data and the sodium process system data, the fire protection space is divided into sodium-related fire protection space and non-sodium fire protection space. Based on the sodium-related fire-resistant space and the sodium process system data, the sodium fire state is calculated, and the sodium fire resistance limit is determined based on the sodium fire state; the conventional fire resistance limit is determined based on the non-sodium fire-resistant space and the standard combustion curve. Based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire isolation equipment installation scheme is provided for the fireproof space.

[0010] Furthermore, the sodium fire state is calculated based on the sodium-related fire-resistant space and the sodium process system data, including: calculating the sodium fire state based on the data of the sodium-related fire-resistant space corresponding to the sodium process system data, combined with sodium leakage simulation data.

[0011] Furthermore, the sodium leakage simulation data includes: sodium leakage flow rate, sodium leakage time, sodium atomization fraction, and process room ventilation conditions.

[0012] Furthermore, the sodium fire state includes the temperature and pressure changes of pool-type sodium fire and mist-type sodium fire.

[0013] Further, determining the sodium fire resistance limit based on the sodium fire state includes: obtaining the sodium fire temperature rise curve and sodium fire duration based on the sodium fire state, and obtaining the sodium fire resistance limit based on the sodium fire temperature rise curve and sodium fire duration.

[0014] Further, determining the conventional fire resistance limit based on the non-sodium fireproof space and the standard combustion curve includes: determining the conventional fire resistance limit of the non-sodium fireproof space based on the standard combustion curve under standard fire resistance test conditions.

[0015] Furthermore, the fire-resistant space includes: a safe fire-resistant zone, a safe fire-resistant sub-zone, a restricted unusable fire-resistant zone, a restricted unusable fire-resistant sub-zone, an evacuation route fire-resistant sub-zone, and a non-safe fire-resistant sub-zone.

[0016] Furthermore, dividing the fire-resistant space into sodium-related fire-resistant space and non-sodium-related fire-resistant space based on the structural layout data and the sodium process system data further includes: selecting the sodium-related fire-resistant space as the type for judgment; determining whether there is a leakage risk in the sodium-related fire-resistant space based on the structural layout data of the sodium-related fire-resistant space; if the system pipeline in the sodium-related fire-resistant space is set as a double-layer pipeline, then there is no sodium leakage risk, and the type of the fire-resistant space is changed to the non-sodium-related fire-resistant space; if the system pipeline in the sodium-related fire-resistant space is not set as a double-layer pipeline, then it is considered that there is a sodium leakage risk, and the type of the fire-resistant space is not changed.

[0017] Furthermore, fire-resistant spaces are defined as follows: the fire resistance limit of the safe fire-resistant zone is not less than 4.0 hours; the conventional fire resistance limit of the safe fire-resistant zone is not less than 2.0 hours; the conventional fire resistance limit of the safe fire-resistant community is not less than 1.0 hour; the conventional fire resistance limit of the restricted unusable fire-resistant zone is not less than 2.0 hours; the conventional fire resistance limit of the restricted unusable fire-resistant community is not less than 1.0 hour; the conventional fire resistance limit of the evacuation route fire-resistant community is not less than 1.0 hour; and the conventional fire resistance limit of the non-safe fire-resistant community is not less than 1.0 hour.

[0018] Furthermore, based on the structural layout data and the sodium process system data, the process rooms of the nuclear island plant are divided into multiple fire-resistant spaces, including: based on the structural layout data and the sodium process system data, dividing the process rooms containing the sodium process system into different sodium-related fire-resistant spaces.

[0019] Furthermore, based on the structural layout data and the sodium process system data, the process rooms of the nuclear island plant are divided into multiple fire-resistant spaces, which also includes: dividing the process rooms that simultaneously contain pressure relief devices and the sodium process system, and the process rooms that mutually serve as pressure relief areas, into one sodium-related fire-resistant space.

[0020] Furthermore, based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire-resistant isolation equipment installation scheme is provided for the fire-resistant space, including: the fire-resistant isolation equipment includes sodium fire-resistant airtight special doors, fire doors, and fire dampers.

[0021] Furthermore, a fire-resistant isolation equipment installation scheme is provided for the fire-resistant space based on the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve, including: installing a sodium fire-resistant airtight special door at the boundary of the sodium-related fire-resistant space, wherein the sodium fire resistance limit is not less than the sodium fire duration or personnel intervention time requirement and verified according to the sodium fire temperature rise curve for 4.0 hours; the conventional fire resistance limit of the sodium fire-resistant airtight special door is not less than 2.0 hours according to the fire standard temperature rise curve; installing a fire damper on the ventilation duct at the boundary of the sodium-related fire-resistant space, wherein the sodium fire resistance limit is not less than the sodium fire duration or personnel intervention time requirement and verified according to the sodium fire temperature rise curve for 4.0 hours; the conventional fire resistance limit of the fire damper is not less than 2.0 hours according to the fire standard temperature rise curve; and the fire damper is activated by an automatic fire alarm system.

[0022] Furthermore, based on the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve, a fire isolation equipment installation scheme is provided for the fire-resistant space, including: installing fire doors with a conventional fire resistance limit of not less than 2.0 hours at the boundaries of the safe fire-resistant zone and the restricted unusable fire-resistant zone; installing fire dampers with a conventional fire resistance limit of not less than 2.0 hours on the ventilation ducts at the boundaries of the safe fire-resistant zone and the restricted unusable fire-resistant zone, the fire dampers being activated by the automatic fire alarm system; installing fire doors with a conventional fire resistance limit of not less than 1.0 hour at the boundaries of the safe fire-resistant zone, the restricted unusable fire-resistant zone, the evacuation route fire-resistant zone, and the unsafe fire-resistant zone; and installing fire dampers with a conventional fire resistance limit of not less than 1.0 hour on the ventilation ducts at the boundaries of the safe fire-resistant zone, the restricted unusable fire-resistant zone, the evacuation route fire-resistant zone, and the unsafe fire-resistant zone, the fire dampers being activated by the automatic fire alarm system.

[0023] To achieve the above objectives, the present invention also proposes a device for establishing a fireproof space in a nuclear island plant.

[0024] A device for establishing a fireproof space in a nuclear island plant, characterized in that it comprises: The space division module is used to collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces based on the structural layout data and sodium process system data. The type classification module is used to divide the fire protection space into sodium-related fire protection space and non-sodium fire protection space according to the structural layout data and the sodium process system data. The limit acquisition module is used to calculate the sodium fire state based on the sodium-related fireproof space and the sodium process system data, determine the sodium fire resistance limit based on the sodium fire state, and determine the conventional fire resistance limit based on the non-sodium fireproof space and the standard combustion curve. The scheme formulation module is used to provide a fireproof isolation equipment setting scheme for the fireproof space based on the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve.

[0025] Based on the above technical solution, the present invention has at least the following beneficial effects: 1. This invention proposes a method, device, storage medium, and electronic equipment for establishing fire-resistant spaces in a nuclear island building. Based on the sodium process system, it comprehensively divides the process rooms of the sodium-cooled fast reactor nuclear island building into fire-resistant zones, fully considering the special characteristics of sodium fires, such as long combustion time, instantaneous high pressure, and the generation of corrosive aerosols. Combined with the building's civil engineering structure, room layout, and sodium process system setup, it minimizes the impact of sodium fires and their combustion products. By analyzing the combustion characteristics of sodium fires and the load density and duration of conventional fires, this invention clarifies the fire resistance limits of each fire-resistant space and ensures that the fire resistance performance of the fire-resistant space boundaries meets both the sodium fire resistance limit and the conventional fire resistance limit. It divides equipment and components performing the same safety function into different fire-resistant spaces, avoiding common-mode failures of different equipment series caused by the same fire, and ensuring that the safety functions of the nuclear power plant can still operate normally in the event of a fire.

[0026] 2. This invention proposes a method, device, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island buildings. By combining simulated leakage data during sodium fires, the sodium fire state and sodium fire resistance limit during a sodium fire within the fire-resistant space are determined. Furthermore, based on the fire resistance limits of different fire-resistant spaces, fire-resistant spaces are divided in the nuclear island building, and fire-resistant isolation equipment is installed. This invention focuses on the differences between sodium fires and conventional fires, and determines the fire-resistant space requirements between sodium process areas based on the characteristics of sodium fires, effectively reducing the impact of sodium fires on the safety of nuclear power plants and ensuring the fire safety of sodium-cooled fast reactors.

[0027] 3. This invention proposes a method, apparatus, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island plant buildings. By precisely setting fire-resistant isolation devices at the boundaries of different fire-resistant spaces according to their fire resistance limits, such as sodium-fire-resistant airtight special doors, fire doors, and fire dampers, these devices meet the current fire resistance limit requirements. This optimized equipment configuration not only ensures the integrity and stability of the fire-resistant space boundaries in the event of a sodium fire, but also allows for precise control of the spread of sodium fire according to specific needs, avoiding excessive use of equipment and waste of resources. Furthermore, rigorous verification using sodium fire temperature rise curves and duration further ensures the effectiveness and economy of the fire-resistant isolation devices, achieving the goal of optimizing resource allocation and improving equipment utilization efficiency while ensuring fire safety in the nuclear island plant building. Attached Figure Description

[0028] The accompanying drawings, which form part of this specification, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A flowchart illustrating a method for establishing a fireproof space in a nuclear island plant, according to one embodiment, is shown. Figure 2A schematic diagram of a fire-resistant space creation device for a nuclear island plant is shown in one embodiment. Figure 3 A schematic diagram of fire-resistant space division according to one embodiment is shown; Figure 4 A schematic diagram of fire-resistant space division according to one embodiment is shown; Figure 5 A schematic diagram of a standard combustion curve for one embodiment is shown; Figure 6 A schematic diagram of the sodium fire temperature rise curve of one embodiment is shown; Figure 7 A structural schematic diagram of a fire-resistant space creation product for a nuclear island plant is shown in one embodiment; Figure 8 A schematic diagram of the structure of an electronic device according to an embodiment is shown. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] The present invention will be further described in detail below with reference to specific embodiments, which should not be construed as limiting the scope of protection claimed by the present invention.

[0031] Example

[0032] To address the risk of loss of fire protection integrity in nuclear island plant fire-resistant spaces due to the fact that existing methods for establishing fire-resistant spaces and boundary fire isolation equipment fail to adequately consider the unique characteristics of sodium fires, such as their long duration, instantaneous high pressure, and the generation of corrosive aerosols, this invention proposes a method, apparatus, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island plant buildings.

[0033] To achieve the above objectives, the present invention also proposes a method for establishing a fireproof space in a nuclear island plant.

[0034] like Figure 1 The figure illustrates a method for establishing a fireproof space in a nuclear island plant according to an embodiment of the present invention. The process mainly includes the following steps: S101: Collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces based on the structural layout data and sodium process system data.

[0035] Furthermore, the sodium-related fire-resistant space includes a safe fire-resistant zone.

[0036] Furthermore, structural layout data of the nuclear island plant is collected, including civil engineering structure and room layout. Based on the civil engineering structure, room layout, and sodium process system settings of the nuclear island plant, process rooms with sodium fire risk are set up as independent sodium-related fire-proof spaces. The process rooms that simultaneously have pressure relief devices and the sodium process system are divided into one sodium-related fire-proof space with the process rooms that serve as pressure relief areas for each other.

[0037] Furthermore, for non-sodium-related process rooms, taking into account their civil engineering structure, room layout, and safety system settings, different series of equipment performing the same safety function within the nuclear island plant are divided into different non-sodium fireproof spaces.

[0038] Furthermore, in the sodium-cooled fast reactor engineering of this embodiment, the electromagnetic pump of the spent component conversion tank cooling system is used to send sodium from the overflow tank to the sodium-air heat exchanger. The sodium-air heat exchanger is used for heat exchange between sodium and air to discharge the remaining heat released from the spent component. Figure 3 As shown, in terms of building structure and room layout, the two electromagnetic pumps are located in room UJA00103 on the ±0.00m floor and room UJA04108 on the +4.50m floor, respectively. This allows for partitioning and isolation, and there is no need for mutual pressure relief between the process rooms. The two electromagnetic pumps are respectively divided into independent sodium-related fireproof spaces.

[0039] Furthermore, such as Figure 4 As shown, there are two independent process rooms, namely room UJA04107 and room UJA04109. Each process room is equipped with an air heat exchanger, both located on the +4.50m floor, which divides the two independent process rooms into independent sodium-related fire-resistant spaces.

[0040] S102: Based on the structural layout data and the combustible data in the sodium process system data, the fireproof space is divided into multiple non-sodium fireproof spaces.

[0041] Furthermore, the fire-prevention space includes safe fire-prevention zones, safe fire-prevention sub-zones, restricted unusable fire-prevention zones, restricted unusable fire-prevention sub-zones, evacuation route fire-prevention sub-zones, and unsafe fire-prevention sub-zones.

[0042] Furthermore, the sodium-related fire protection space includes a safe fire protection zone; the non-sodium fire protection space includes a safe fire protection zone, a safe fire protection sub-zone, a restricted unusable fire protection zone, a restricted unusable fire protection sub-zone, an evacuation route fire protection sub-zone, and a non-safe fire protection sub-zone.

[0043] Furthermore, for process rooms that do not involve sodium fire, if the content of combustibles in the fire-resistant space meets the requirements for the risk of spreading fire, and equipment performing safety functions is installed, and the structure of the boundary of the fire-resistant space is entirely solid partition walls, then the fire-resistant space is classified as a safe fire-resistant zone. Furthermore, if the combustible content in the fire-resistant space meets the requirements for the risk of spreading fire or localized fire, and equipment for performing safety functions is installed, but the structure of the boundary of the fire-resistant space has imaginary walls or open walls, making physical isolation impossible, then the fire-resistant space is classified as a safe fire-resistant community.

[0044] Furthermore, if the combustible content in the fire-resistant space meets the requirements for the risk of spreading fire, but no equipment is installed to perform safety functions, and the structure of the boundary of the fire-resistant space is entirely composed of solid partitions, then the fire-resistant space is classified as a restricted unusable fire-resistant zone.

[0045] Furthermore, if the combustible content in the fire-resistant space meets the requirements for spreading fire risk or localized fire risk, but no equipment is installed to perform safety functions, and the structure of the fire-resistant space boundary has imaginary walls or open walls, making physical isolation impossible, then the fire-resistant space is classified as a restricted unusable fire-resistant zone.

[0046] Furthermore, if the primary function of the fire-resistant space is to ensure the safe passage of personnel, firefighters, and emergency personnel, and combustibles are strictly limited and good ventilation is ensured when conditions permit or ventilation is blocked when conditions do not permit, then the fire-resistant space shall be classified as a fire-resistant evacuation route.

[0047] Furthermore, if the combustible content in the fire-resistant space does not meet the requirements for the risk of spreading fire and the risk of localized fire, and if the fire-resistant space is not equipped with any equipment that performs safety functions and is not related to ensuring personal safety, then the fire-resistant space shall be classified as an unsafe fire-resistant community.

[0048] Furthermore, such as Figure 3 The fireproof space containing the electromagnetic pump shown in this embodiment contains a sodium process system, posing a sodium fire risk. The boundary structure of the fireproof space is entirely composed of solid walls; therefore, rooms UJA00103 and UJA04108 are designated as safe fireproof zones within the sodium fireproof zone. Figure 4 As shown, the fireproof space containing the air heat exchanger has a sodium process system, which poses a sodium fire risk. The boundary structure of the fireproof space is entirely composed of solid partition walls, therefore it is classified as a safe fireproof zone.

[0049] S103: Calculate the sodium fire state based on the sodium-related fire-resistant space and the sodium process system data, and determine the sodium fire resistance limit based on the sodium fire state; determine the conventional fire resistance limit based on the non-sodium fire-resistant space and the standard combustion curve.

[0050] In this invention, such as Figure 5The “standard combustion curve” shown is a reference curve used to simulate the temperature change over time under fire conditions. It is crucial in fire science and the assessment of the fire resistance performance of materials. By providing an idealized model of fire temperature rise, it helps researchers and engineers predict and analyze the behavior and performance of building materials, components or structures in a fire environment.

[0051] In this invention, the "fire standard temperature rise curve" refers to a standard reference curve used to evaluate the fire resistance performance of building materials, components, or structures under fire conditions. It specifies the relationship between ambient temperature and time under standard fire test conditions. The standard temperature rise curve used in this invention is the ISO 834 standard temperature rise curve, which is an idealized fire temperature rise curve used to simulate the temperature change over time in a fire environment. Its specific formula is as follows: , in It is the ambient temperature. It is time. The initial ambient temperature is selected as 20°C in this embodiment. .

[0052] Furthermore, based on the collected data from the sodium fire process system and combined with sodium leakage simulation data, the sodium fire state was calculated. Assuming the gas in the room is an ideal gas, for an ideal gas: , The energy balance equation for the gases in the room is: , Differentiating the above formula with respect to time and substituting it into the equation yields the formula for calculating the pressure P of the gas medium in the room: , In the formula: γ is the specific heat ratio of the room gas; V is the room volume (m³). 3 U is the internal energy (J) of the gas medium in the room. Heat flow (W) from room air to room walls; The enthalpy (J / kg) of the gas leaking into the room; Mass flow rate (kg / s) of the gas leaking in and out. t represents the mass flow rate of the leaking gas medium (kg / s); t represents time (s).

[0053] Using a similar method to calculate the temperature of the gas medium in the room, the ideal gas law is: , in, Room gas pressure; Let V be the mass of the gas in the room; V be the volume of the gas; and R be the molar gas constant. Let be the absolute temperature of the gas. With constant volume, differentiating the above equation yields the following equation: , In the formula: The room's gas temperature; Room gas pressure; The molar gas constant; Given the mass of the gas in the room, the expressions for the temperature and pressure changes of the sodium mist are as follows: , , In the formula: Pg is the gas pressure; Vg is the gas volume; R is the Claplon coefficient; Pg is the gas pressure; n' represents the total number of moles of oxygen, nitrogen, hydrogen, and water vapor; subscripts: o for oxygen; n for nitrogen; h for hydrogen; e for water; s for sodium; j for sodium mist; m for sodium oxide; a for aerosol; p for sodium peroxide; b for sodium hydroxide.

[0054] Furthermore, the entire combustion process was divided into multiple time steps. Pool-type sodium fires develop relatively slowly, with time steps initially set at 1.0 min for the first 60 minutes, followed by 15 min steps thereafter. Atomized sodium fires develop more rapidly, with time steps initially set at 0.3 min for the first 10 minutes, followed by 1 min steps thereafter. The temperature and pressure changes of the pool-type and atomized sodium fires obtained above were plotted according to the time steps as shown below. Figure 6 The sodium fire temperature rise curve described in the text.

[0055] Furthermore, the sodium fire resistance limit of the sodium fireproof zone is determined based on the sodium fire temperature rise curve.

[0056] S104: Provide a fireproof isolation equipment installation scheme for the fireproof space based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve.

[0057] Furthermore, based on the sodium fire resistance limit obtained above, sodium fire-resistant airtight special doors and fire dampers are installed in sodium-related fire-resistant spaces. Specifically, a sodium fire-resistant airtight special door with a sodium fire resistance limit of 4.0 hours and verified according to the sodium fire temperature rise curve of 4.0 hours is installed at the boundary of the sodium fire-resistant zone. A fire damper with a sodium fire resistance limit of 4.0 hours and verified according to the sodium fire temperature rise curve of 4.0 hours is installed on the ventilation duct at the boundary of the sodium fire-resistant space. The fire damper is activated by the automatic fire alarm system.

[0058] Furthermore, based on the conventional fire resistance rating obtained above, a fire door with a conventional fire resistance rating of 2.0 hours is installed at the boundary of the non-sodium fireproof space; a fire damper with a conventional fire resistance rating of 2.0 hours and verified according to the fire standard temperature rise curve of 2.0 hours is installed on the ventilation duct at the boundary of the non-sodium fireproof space, and the fire damper is activated by the automatic fire alarm system.

[0059] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0060] Based on another aspect of the embodiments of this application, the present invention also provides a device for establishing a fireproof space in a nuclear island plant. For example... Figure 2 As shown, the device includes: The space division module 201 is used to collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces according to the structural layout data and sodium process system data. The type classification module 202 is used to divide the fire protection space into sodium-related fire protection space and non-sodium fire protection space according to the structural layout data and the sodium process system data. The limit acquisition module 203 is used to calculate the sodium fire state based on the sodium-related fireproof space and the sodium process system data, determine the sodium fire resistance limit based on the sodium fire state, and determine the conventional fire resistance limit based on the non-sodium fireproof space and the standard combustion curve. The scheme formulation module 204 is used to provide a fireproof isolation equipment setting scheme for the fireproof space based on the sodium fire resistance limit, the conventional fire resistance limit and the fire standard temperature rise curve.

[0061] As an optional solution, the above-mentioned device is also used to: calculate the sodium fire state based on the sodium-related fire-proof space and the sodium process system data, including: calculating the sodium fire state based on the data of the sodium-related fire-proof space corresponding to the sodium process system data, combined with sodium leakage simulation data.

[0062] As an optional solution, the above-mentioned device is also used for: the sodium leakage simulation data, including: sodium leakage flow rate, sodium leakage time, sodium atomization fraction, and process room ventilation conditions.

[0063] As an optional solution, the above-mentioned device is also used for: the sodium fire state including the temperature of pool-type sodium fire, the temperature and pressure changes of mist-type sodium fire.

[0064] As an optional solution, the above-mentioned device is also used to: determine the sodium fire resistance limit based on the sodium fire state, including: obtaining the sodium fire temperature rise curve and sodium fire duration based on the sodium fire state, and obtaining the sodium fire resistance limit based on the sodium fire temperature rise curve and sodium fire duration.

[0065] As an optional solution, the above-mentioned device is also used to: determine the conventional fire resistance limit based on the non-sodium fireproof space and the standard combustion curve, including: determining the conventional fire resistance limit of the non-sodium fireproof space based on the standard combustion curve under standard fire resistance test conditions.

[0066] As an optional solution, the above-mentioned device is also used in the fire-resistant space, including: a safe fire-resistant zone, a safe fire-resistant sub-zone, a restricted unusable fire-resistant zone, a restricted unusable fire-resistant sub-zone, an evacuation route fire-resistant sub-zone, and a non-safe fire-resistant sub-zone.

[0067] As an optional solution, the above-mentioned device is further used to: divide the fireproof space into sodium-related fireproof space and non-sodium-related fireproof space according to the structural layout data and the sodium process system data, and further includes: selecting the sodium-related fireproof space as the type for judgment; determining whether there is a leakage risk in the sodium-related fireproof space according to the structural layout data of the sodium-related fireproof space; if the system pipeline in the sodium-related fireproof space is set as a double-layer pipeline, there is no sodium leakage risk, and the type of the fireproof space is changed to the non-sodium-related fireproof space; if the system pipeline in the sodium-related fireproof space is not set as a double-layer pipeline, it is considered that there is a sodium leakage risk, and the type of the fireproof space is not modified.

[0068] As an optional solution, the above-mentioned device is also used to: define fire-resistant spaces, including: the sodium fire resistance limit of the safe fire-resistant zone is not less than 4.0 hours; the conventional fire resistance limit of the safe fire-resistant zone is not less than 2.0 hours; the conventional fire resistance limit of the safe fire-resistant community is not less than 1.0 hour; the conventional fire resistance limit of the restricted unusable fire-resistant zone is not less than 2.0 hours; the conventional fire resistance limit of the restricted unusable fire-resistant community is not less than 1.0 hour; the conventional fire resistance limit of the evacuation route fire-resistant community is not less than 1.0 hour; and the conventional fire resistance limit of the non-safe fire-resistant community is not less than 1.0 hour.

[0069] As an optional solution, the above-mentioned device is also used to: divide the process room of the nuclear island plant into multiple fire-resistant spaces according to the structural layout data and the sodium process system data, including: dividing the process room containing the sodium process system into different sodium-related fire-resistant spaces according to the structural layout data and the sodium process system data.

[0070] As an optional solution, the above-mentioned device is also used to: divide the process room of the nuclear island plant into multiple fireproof spaces according to the structural layout data and the sodium process system data, and further includes: dividing the process room where both the pressure relief device and the sodium process system exist and the process room that serves as a pressure relief area for each other into one sodium-related fireproof space.

[0071] As an optional solution, the above-mentioned device is also used to: provide a fireproof isolation equipment setting scheme for the fireproof space according to the sodium fire resistance limit, the conventional fire resistance limit and the fire standard temperature rise curve, including: the fireproof isolation equipment includes sodium fire resistant airtight special doors, fireproof doors and fire dampers.

[0072] As an optional solution, the above-mentioned device is also used to: provide a fireproof isolation equipment setting scheme for the fireproof space according to the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve, including: setting a sodium fire-resistant airtight special door at the boundary of the sodium-related fireproof space, wherein the sodium fire resistance limit is not less than the sodium fire duration or personnel intervention time requirement and verified according to the sodium fire temperature rise curve for 4.0 hours; the sodium fire-resistant airtight special door, according to the fire standard temperature rise curve, has a conventional fire resistance limit of not less than 2.0 hours; setting a fire damper on the ventilation duct at the boundary of the sodium-related fireproof space, wherein the sodium fire resistance limit is not less than the sodium fire duration or personnel intervention time requirement and verified according to the sodium fire temperature rise curve for 4.0 hours; the fire damper, according to the fire standard temperature rise curve, has a conventional fire resistance limit of not less than 2.0 hours; the fire damper is activated by an automatic fire alarm system.

[0073] As an optional solution, the above-mentioned device is also used to: provide a fireproof isolation equipment setting scheme for the fireproof space according to the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve, including: setting fire doors with a conventional fire resistance limit of not less than 2.0 hours at the boundaries of the safe fireproof zone and the restricted unusable fireproof zone; setting fire dampers with a conventional fire resistance limit of not less than 2.0 hours on the ventilation ducts at the boundaries of the safe fireproof zone and the restricted unusable fireproof zone, the fire dampers being activated by the automatic fire alarm system; setting fire doors with a conventional fire resistance limit of not less than 1.0 hour at the boundaries of the safe fireproof zone, the restricted unusable fireproof zone, the evacuation route fireproof zone, and the unsafe fireproof zone; setting fire dampers with a conventional fire resistance limit of not less than 1.0 hour on the ventilation ducts at the boundaries of the safe fireproof zone, the restricted unusable fireproof zone, the evacuation route fireproof zone, and the unsafe fireproof zone, the fire dampers being activated by the automatic fire alarm system.

[0074] In this application embodiment, the terms "module" or "unit" refer to a computer program or part of a computer program that has a predetermined function and works with other related parts to achieve a predetermined goal, and can be implemented wholly or partially using software, hardware (such as processing circuitry or memory), or a combination thereof. Similarly, a processor (or multiple processors or memory) can be used to implement one or more modules or units. Furthermore, each module or unit can be part of an overall module or unit that includes the functionality of that module or unit.

[0075] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0076] According to one aspect of this application, a computer program product is provided, the computer program product comprising a computer program.

[0077] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0078] Figure 7 A schematic block diagram of a computer system architecture for implementing an electronic device according to embodiments of the present application is shown.

[0079] It should be noted that, Figure 7 The computer system 700 of the electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0080] like Figure 7As shown, the computer system 700 includes a central processing unit (CPU) 701, which can perform various appropriate actions and processes based on programs stored in read-only memory (ROM) 702 or programs loaded from storage section 708 into random access memory (RAM) 703. The RAM 703 also stores various programs and data required for system operation. The CPU 701, ROM 702, and RAM 703 are interconnected via a bus 704. An input / output interface 705 (I / O interface) is also connected to the bus 704.

[0081] The following components are connected to the input / output interface 705: an input section 706 including a keyboard, mouse, etc.; an output section 707 including a cathode ray tube (CRT), liquid crystal display (LCD), etc., and speakers, etc.; a storage section 708 including a hard disk, etc.; and a communication section 709 including a network interface card such as a local area network card, modem, etc. The communication section 709 performs communication processing via a network such as the Internet. A drive 710 is also connected to the input / output interface 705 as needed. A removable medium 73, such as a disk, optical disk, magneto-optical disk, semiconductor memory, etc., is installed on the drive 710 as needed so that computer programs read from it can be installed into the storage section 708 as needed.

[0082] Specifically, according to embodiments of this application, the processes described in the various method flowcharts can be implemented as computer software programs. For example, embodiments of this application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication section 709, and / or installed from removable medium 73. When the computer program is executed by central processing unit 701, it performs various functions defined in the system of this application.

[0083] In such an embodiment, the computer program can be downloaded and installed from a network via the communication section 709, and / or installed from the removable medium 73. When the computer program is executed by the central processing unit 701, it performs various functions provided in the embodiments of this application.

[0084] According to another aspect of the embodiments of this application, an electronic device for establishing a fireproof space in a nuclear island plant is also provided. This embodiment uses this electronic device as an example of a terminal device for illustration. Figure 8 As shown, the electronic device includes a memory 802 and a processor 804. The memory 802 stores a computer program, and the processor 804 is configured to execute the steps in any of the above method embodiments via the computer program.

[0085] Optionally, in this embodiment, the aforementioned electronic device may be located in at least one of a plurality of network devices in a computer network.

[0086] Optionally, in this embodiment, the processor may be configured to execute the methods in the embodiments of this application via a computer program.

[0087] Alternatively, as those skilled in the art will understand, Figure 8 The structure shown is for illustrative purposes only. Figure 8 This does not limit the structure of the aforementioned electronic devices. For example, the electronic device may also include components that are more... Figure 8 The more or fewer components shown (such as network interfaces, etc.), or having the same Figure 8 The different configurations shown.

[0088] The memory 802 can be used to store software programs and modules, such as the program instructions / modules corresponding to the method, apparatus, storage medium, and electronic device for establishing a fireproof space in a nuclear island plant according to an embodiment of this application. The processor 804 executes various functional applications and data processing by running the software programs and modules stored in the memory 802, thereby realizing the aforementioned method for establishing a fireproof space in a nuclear island plant. The memory 802 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 802 may further include memory remotely located relative to the processor 804, and these remote memories can be connected to the terminal via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof. Specifically, the memory 802 may be used, but is not limited to, to store collected operational data or cleaned data information. As an example, such as... Figure 8 As shown, the memory 802 may include, but is not limited to, the space division module 201, type division module 202, limit acquisition module 203, and scheme formulation module 204 from the aforementioned nuclear island plant fireproof space creation device. Furthermore, it may include, but is not limited to, other module units from the aforementioned device, which will not be elaborated upon in this example.

[0089] Optionally, the transmission device 806 described above is used to receive or send data via a network. Specific examples of the network described above may include wired networks and wireless networks. In one example, the transmission device 806 includes a Network Interface Controller (NIC), which can be connected to other network devices and a router via a network cable to communicate with the Internet or a local area network. In another example, the transmission device 806 is a Radio Frequency (RF) module, used for wireless communication with the Internet.

[0090] In addition, the aforementioned electronic device also includes: a display 808 for displaying the aforementioned operating data or cleaning data; and a connection bus 810 for connecting the various module components in the aforementioned electronic device.

[0091] In other embodiments, the aforementioned terminal device or server can be a node in a distributed system, wherein the distributed system can be a blockchain system, which is a distributed system formed by connecting multiple nodes through network communication. The nodes can form a peer-to-peer network, and any form of computing device, such as a server, terminal, or other electronic device, can become a node in the blockchain system by joining this peer-to-peer network.

[0092] According to one aspect of this application, a computer-readable storage medium is provided, wherein a processor of an electronic device reads computer instructions from the computer-readable storage medium, and executes the computer instructions, causing the electronic device to perform a method for establishing a fire-resistant space in a nuclear island plant, one of the various alternative implementations of establishing a fire-resistant space in a nuclear island plant described above.

[0093] Optionally, in this embodiment, the computer-readable storage medium described above may be configured to store methods for performing the embodiments of this application.

[0094] Optionally, in this embodiment, those skilled in the art will understand that all or part of the steps in the various methods of the above embodiments can be implemented by a program instructing the hardware related to the terminal device. The program can be stored in a computer-readable storage medium, which may include: flash drive, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc.

[0095] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0096] If the integrated units in the above embodiments are implemented as software functional units and sold or used as independent products, they can be stored in the aforementioned computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause one or more electronic devices to execute all or part of the steps of the methods described in the various embodiments of this application.

[0097] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0098] In the several embodiments provided in this application, it should be understood that the disclosed application can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some interfaces; indirect couplings or communication connections between units or modules may be electrical or other forms.

[0099] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0100] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0101] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0102] In summary, as can be seen from the above description, the embodiments of the present invention achieve the following technical effects: 1. This invention proposes a method, device, storage medium, and electronic equipment for establishing fire-resistant spaces in a nuclear island building. Based on the sodium process system, it comprehensively divides the process rooms of the sodium-cooled fast reactor nuclear island building into fire-resistant zones, fully considering the special characteristics of sodium fires, such as long combustion time, instantaneous high pressure, and the generation of corrosive aerosols. Combined with the building's civil engineering structure, room layout, and sodium process system setup, it minimizes the impact of sodium fires and their combustion products. By analyzing the combustion characteristics of sodium fires and the load density and duration of conventional fires, this invention clarifies the fire resistance limits of each fire-resistant space and ensures that the fire resistance performance of the fire-resistant space boundaries meets both the sodium fire resistance limit and the conventional fire resistance limit. It divides equipment and components performing the same safety function into different fire-resistant spaces, avoiding common-mode failures of different equipment series caused by the same fire, and ensuring that the safety functions of the nuclear power plant can still operate normally in the event of a fire.

[0103] 2. This invention proposes a method, device, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island buildings. By combining simulated leakage data during sodium fires, the sodium fire state and sodium fire resistance limit in the fire-resistant zone are determined. Furthermore, based on the fire resistance limits of different fire types, fire-resistant spaces are divided in the nuclear island building, and fire-resistant isolation equipment is installed. This invention focuses on the differences between sodium fires and conventional fires, and determines the fire-resistant space requirements between sodium processes based on the characteristics of sodium fires, effectively reducing the impact of sodium fires on the safety of nuclear power plants and ensuring the fire safety of sodium-cooled fast reactors.

[0104] 3. This invention proposes a method, apparatus, storage medium, and electronic equipment for establishing fire-resistant spaces in nuclear island plant buildings. By precisely setting fire-resistant isolation devices at the boundaries of different fire-resistant spaces according to their fire resistance limits, such as sodium-fire-resistant airtight special doors, fire doors, and fire dampers, these devices meet the current fire resistance limit requirements. This optimized equipment configuration not only ensures the integrity and stability of the fire-resistant space boundaries in the event of a sodium fire, but also allows for precise control of the spread of sodium fire according to specific needs, avoiding excessive use of equipment and waste of resources. Furthermore, rigorous verification using sodium fire temperature rise curves and duration further ensures the effectiveness and economy of the fire-resistant isolation devices, achieving the goal of optimizing resource allocation and improving equipment utilization efficiency while ensuring fire safety in the nuclear island plant building.

[0105] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0106] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0107] It should be noted that, in the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A method for establishing a fireproof space in a nuclear island plant, characterized in that, include: Collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces based on the structural layout data and sodium process system data; Based on the structural layout data and the sodium process system data, the fire protection space is divided into sodium-related fire protection space and non-sodium fire protection space. Based on the sodium-related fire-resistant space and the sodium process system data, the sodium fire state is calculated, and the sodium fire resistance limit is determined based on the sodium fire state; the conventional fire resistance limit is determined based on the non-sodium fire-resistant space and the standard combustion curve. Based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire isolation equipment installation scheme is provided for the fireproof space.

2. The method according to claim 1, characterized in that, Based on the data from the sodium-related fire-prevention space and the sodium process system, the sodium fire state is calculated, including: Based on the data of the sodium-related fire-prevention space corresponding to the sodium process system data, and combined with sodium leakage simulation data, the sodium fire state is calculated.

3. The method according to claim 2, characterized in that, The sodium leakage simulation data includes: Sodium leakage flow rate, sodium leakage time, sodium atomization fraction, and process room ventilation conditions.

4. The method according to claim 2, characterized in that, The sodium-fired state includes: Temperature and pressure changes in pool-type sodium flare and mist-type sodium flare.

5. The method according to claim 1, characterized in that, Determining the sodium fire resistance limit based on the sodium fire state includes: Based on the sodium fire state, the sodium fire temperature rise curve and sodium fire duration are obtained, and the sodium fire resistance limit is obtained based on the sodium fire temperature rise curve and sodium fire duration.

6. The method according to claim 1, characterized in that, The conventional fire resistance limit is determined based on the aforementioned non-sodium fire-resistant space and standard combustion curve, including: Under standard fire resistance test conditions, the conventional fire resistance limit of the non-sodium fireproof space is determined based on the standard combustion curve.

7. The method according to claim 5, characterized in that, The fireproof space includes: Fire safety zones, fire safety residential areas, restricted unusable fire safety zones, restricted unusable fire safety residential areas, fire safety residential areas with evacuation routes, and unsafe fire safety residential areas.

8. The method according to claim 7, characterized in that, Based on the structural layout data and the sodium process system data, the fire-resistant space is divided into a sodium-related fire-resistant space and a non-sodium-related fire-resistant space, and further includes: The sodium-contaminated fire-resistant space is selected for evaluation. Based on the structural layout data of the sodium-contaminated fire-resistant space, it is determined whether there is a leakage risk in the sodium-contaminated fire-resistant space. If the system pipes in the sodium-contaminated fire-resistant space are set as double-layer pipes, there is no sodium leakage risk, and the type of the fire-resistant space is changed to the non-sodium fire-resistant space. If the system pipes in the sodium-contaminated fire-resistant space are not set as double-layer pipes, it is considered that there is a sodium leakage risk, and the type of the fire-resistant space is not changed.

9. The method according to claim 7, characterized in that, include: The sodium fire resistance limit of the fire-resistant zone shall not be less than 4.0 hours; The conventional fire resistance rating of the fire-resistant zone shall not be less than 2.0 hours; The conventional fire resistance rating of the fire-resistant community shall not be less than 1.0 hour; The conventional fire resistance rating of the restricted unusable fire zone is not less than 2.0 hours; The conventional fire resistance rating of the restricted fire-resistant community shall not be less than 1.0 hour; The conventional fire resistance rating of the fire-resistant zone of the evacuation route is not less than 1.0 hour; The conventional fire resistance rating of the non-safe fireproof community is not less than 1.0 hour.

10. The method according to claim 1, characterized in that, Based on the structural layout data and the sodium process system data, the process rooms of the nuclear island plant are divided into multiple fire-resistant spaces, including: Based on the structural layout data and the sodium process system data, the process room containing the sodium process system is divided into different sodium-related fireproof spaces.

11. The method according to claim 1, characterized in that, Based on the structural layout data and the sodium process system data, the process rooms of the nuclear island plant are divided into multiple fireproof spaces, including: The process room where both the pressure relief device and the sodium process system are located is divided into a sodium-related fireproof space, along with the process rooms that serve as pressure relief areas for each other.

12. The method according to claim 7, characterized in that, Based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire-resistant isolation equipment installation scheme is provided for the fire-resistant space, including: The fireproof isolation equipment includes sodium-proof airtight special doors, fireproof doors, and fire dampers.

13. The method according to claim 12, characterized in that, Based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire-resistant isolation equipment installation scheme is provided for the fire-resistant space, including: A sodium-fire-resistant airtight special door is installed at the boundary of the sodium-related fire-resistant space. The sodium fire resistance limit is not less than the sodium fire duration or personnel intervention time requirement and is verified according to the sodium fire temperature rise curve of 4.0 hours. The sodium fire-resistant airtight special door has a conventional fire resistance limit of not less than 2.0 hours according to the fire standard temperature rise curve. A fire damper is installed on the ventilation duct at the boundary of the sodium-contaminated fire-resistant space. The fire damper is designed to withstand sodium fire for a duration of not less than the duration of sodium fire or the time required for personnel intervention, and is verified according to the sodium fire temperature rise curve for 4.0 hours. The fire damper is designed to withstand conventional fire for a duration of not less than 2.0 hours according to the fire standard temperature rise curve. The fire damper is activated by the automatic fire alarm system.

14. The method according to claim 12, characterized in that, Based on the sodium fire resistance limit, the conventional fire resistance limit, and the standard fire temperature rise curve, a fire-resistant isolation equipment installation scheme is provided for the fire-resistant space, including: Fire doors with a conventional fire resistance rating of not less than 2.0 hours shall be installed at the boundaries of the safe fire protection zone and the restricted unusable fire protection zone. Fire dampers with a conventional fire resistance rating of not less than 2.0 hours are installed on ventilation ducts at the boundaries of the safe fire protection zone and the restricted unusable fire protection zone. The fire dampers are activated by the automatic fire alarm system. Fire doors with a conventional fire resistance rating of not less than 1.0 hour shall be installed at the boundaries of the safe fire protection zone, the restricted unusable fire protection zone, the evacuation passage fire protection zone, and the unsafe fire protection zone. Fire dampers with a conventional fire resistance rating of not less than 1.0 hour are installed on the ventilation ducts at the boundaries of the safe fire protection zone, the restricted unusable fire protection zone, the evacuation passage fire protection zone, and the unsafe fire protection zone. The fire dampers are activated by the automatic fire alarm system.

15. A device for establishing a fireproof space in a nuclear island plant, characterized in that, include: The space division module is used to collect structural layout data of the nuclear island plant and sodium process system data, and divide the process room of the nuclear island plant into multiple fireproof spaces based on the structural layout data and sodium process system data. The type classification module is used to divide the fire protection space into sodium-related fire protection space and non-sodium fire protection space according to the structural layout data and the sodium process system data. The limit acquisition module is used to calculate the sodium fire state based on the sodium-related fireproof space and the sodium process system data, determine the sodium fire resistance limit based on the sodium fire state, and determine the conventional fire resistance limit based on the non-sodium fireproof space and the standard combustion curve. The scheme formulation module is used to provide a fireproof isolation equipment setting scheme for the fireproof space based on the sodium fire resistance limit, the conventional fire resistance limit, and the fire standard temperature rise curve.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored computer program, wherein the computer program can be executed by an electronic device to perform the method described in any one of claims 1 to 14.

17. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program performs the steps of the method described in any one of claims 1 to 14.

18. An electronic device comprising a memory and a processor, characterized in that, The memory stores a computer program, and the processor is configured to execute the method described in any one of claims 1 to 14 through the computer program.

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